Should upgrade?

Hello,
Im run a CCR1036-12G-4S for about two years and never have a single problem (and want to continue like this). Just do BGP on this router, so this is critical.
So i never have problems so i never update the router and run RouterOS 6.10

Should I upgrade the router? Any special care to have? Any risks? What to do if you have a problem?

Thanks,